Pumping (1 week old baby)

Hi po! I'm a FTM, mixed feeding my 1 week old. I have inverted nipples kaya nag-pupump ako to stimulate. Kaso may nababasa ako na wag daw mag pump kung younger than 3 or 6 weeks palang si LO. Should I stop pumping and wait until 3 weeks na siya? Thank you! 💗